package com.example.base.view

import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.databinding.DataBindingUtil
import androidx.databinding.ViewDataBinding
import androidx.fragment.app.Fragment
//基础Fragment
abstract class BaseFragment<VDB:ViewDataBinding>:Fragment() {
    protected lateinit var mDataBinding: VDB
    override fun onCreateView(
        inflater: LayoutInflater,
        container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {
        //加载布局
        mDataBinding=DataBindingUtil.inflate(inflater,getLayoutId(),container,false)
        return mDataBinding.root
    }

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
        //初始化View
        initView()
    }

    override fun onViewStateRestored(savedInstanceState: Bundle?) {
        super.onViewStateRestored(savedInstanceState)
        savedInstanceState?.run {
            getFragmentState(this)
        }
    }

    override fun onSaveInstanceState(outState: Bundle) {
        super.onSaveInstanceState(outState)
        saveFragmentState(outState)
    }
    protected fun getFragmentState(state: Bundle) {

    }
    protected fun saveFragmentState(outState:Bundle){

    }
    protected abstract fun getLayoutId(): Int

    protected abstract fun initView()
}